Stored Cross-Site Scripting Vulnerability in Gutentor Page Builder for WordPress
CVE-2026-2951

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Gutentor – Gutenberg Blocks – Page Builder For Gutenberg Editor
Vendor
CVE Published:
23 April 2026

What is CVE-2026-2951?

The Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor plugin for WordPress has a vulnerability that allows stored cross-site scripting. This occurs in versions up to and including 3.5.5, where insufficient input sanitization and output escaping enable authenticated attackers with contributor-level access or higher to inject arbitrary web scripts. When these scripts are executed on pages visited by users, it poses a serious security risk, allowing attackers to manipulate user experiences and potentially compromise user data.

Affected Version(s)

Gutentor – Gutenberg Blocks – Page Builder for Gutenberg Editor 0 <= 3.5.5

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/changeset/3495930/gute...

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Muhammad Yudha - DJ
.